16x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Hydro Components 1x CO2 Alarm System(CDA-1)

1x CO2 Alarm System(CDA-1)

Measures photosynthetically active radiation (PAR) from 400 to 700 nm

Unit comes with all connections-fittings and a tube to join more than one oven together

hydroponics and other gardens

Real-time data

16x28x1 Exact MERV 14 Plus Carbon AC Furnace Filters 6 Pack Hydro Components 1x CO2 Alarm System(CDA-1)Nordic Pure Custom MERV 14 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition